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Kangaroos may be nature’s best hoppers. But when they are grazing on all fours, which is most of the time, their tail becomes a powerful fifth leg, says a new study.

Last week, the Å·ÃÀ¿Ú±¬ÊÓƵ-Boulder School of Education hosted more than 750 scholars and graduate students from all over the world for the International Conference of the Learning Sciences (ICLS) . Chaired this year by professors Bill Penuel, Susan Jurow and Kevin O’Connor, the conference has been held biannually for more than 20 years in places such as Australia and the Netherlands as well as throughout the United States.

Sharks were a tolerant bunch some 50 million years ago, cruising an Arctic Ocean that contained about the same percentage of freshwater as Louisiana’s Lake Ponchatrain does today, says a new study involving the University of Å·ÃÀ¿Ú±¬ÊÓƵ Boulder and the University of Chicago.

The Institute of Education Sciences at the U.S. Department of Education has awarded nearly $5 million to the University of Å·ÃÀ¿Ú±¬ÊÓƵ Boulder, the Center for Education Policy Research at Harvard University and Northwestern University to create a new center that will study how educational leaders—including school district supervisors and principals—use research when making decisions and what can be done to make research findings more useful and relevant for those leaders.